Revival
Don't Use This:
Gligar @ Eviolite
Trait: Immunity
EVs: 252 HP / 252 Def / 4 Spe
Impish Nature
- Roost
- Earthquake
- U-turn / Toxic
- Toxic / Taunt / Stealth Rock
Why it's bad:
To put it bluntly, Gligar is not a very good physical wall (it sucks as a Pokemon in general too). Although Gligar has phenomenal physical bulk and recovery in Roost, its lack of offensive presence, inability to counter many physical threats, and how easy it is to force out makes it a hindrance to most teams it is used on. Gligar does not do well, because it is weak: it can't even OHKO the frail Darmanitan without any Attack investment. As such, it is massive set up fodder (I mean at least Dusclops has WoW+Curse), which means any set up sweeper can come in and easily use Gligar to their advantage. This includes mons such as Curse+Rest Snorlax, CroCune, SD Heracross, NP Azelf/Cofagrigus, Bisharp, SubCM Meloetta, etc. Gligar does not even beat most Fighting-type either; while it has the bulk and the resistance, Gligar loses to SD Heracross because it cannot do anything to Heracross while if Gligar poisons Heracross, it will make Heracross stronger while its +6 Stone Edge is a guaranteed kill. Mienshao and Cobalion run HP Ice a lot, and they can just use it on a painfully obvious Gligar switch-in; either that, or Mienshao can use Sub+BP or simply U-turn, and now your opponent easily has the advantage now that you're probably facing one of the following: Shaymin, Specs Kingdra, Sub Zapdos. Its Electric immunity is pretty useless, since Raikou can set up, but also use HP Ice, and Zapdos does not care about anything Gligar has to offer. Simply put, Gligar is not a good Pokemon, and there are plenty of other choices as either a Fighting-type answer or SR user.
Instead, Use this:
Crobat @ Black Sludge
Trait: Inner Focus
EVs: 176 HP / 192 Atk / 4 SpD / 136 Spe
Jolly Nature
- Brave Bird
- Taunt
- Roost
- U-turn / Toxic / Super Fang
Why it's better:
If you want a solid answer to Fighting-types like Heracross and Mienshao as well as stall teams, this right here is the man. Crobat provides a much better answer to Heracross and Mienshao than Gligar ever is; while Gligar loses to SD Heracross and HP Ice Mienshao, Crobat outspeeds both, and can come in on CC/HJK for pretty much free, while it threatens with a strong STAB Brave Bird. Crobat has more offensive presence and Speed (even if it's not remarkably strong), so it poses a greater threat than Gligar. Crobat also has the added bonus of being able to counter Roserade, Shaymin, and Virizion as well, which Gligar can't do, and Crobat overall gets the chance to handle a lot of the prominent Fighting- and Grass-types that roam the tier. Crobat also has the fast U-turn to gain quick momentum; so attracting stuff like Bronzong is neat so you can send in a teammate for free to get rolling. Overall Crobat is just much better than Gligar in pretty much every situation.